Wrapper for tobacco, such as cigarets, cigars, cheroots and the like



Aug. 6, 1957 c, PFQH 2,801,636

WRAPPER FOR TOBACCO, SUCH AS CIGARETS, CIGARS, CHEROOTS AND THE LIKEFiled Sept. 9, 1 .55-

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PZAsr/c/za? 40v Ass/w //VCR/76/N6- Eumvwc $1 550 IN VEN TOR. 001?? Hz)United States Patent Office 2,801,636 Patented Aug. 6, 1957 WRAPPER FORTOBACCO, SUCH. AS CIGARETS, CIGARS, CHEROOTS AND THE LIKE Curt Pfoh,Frankfurt am Main, Germany Application September 9, 1955, Serial No.533,272

Claims priority, application Germany September 28, 1954 6 Claims. (Cl.131-45) The present invention relates to new and improved wrappers fortobacco and more particularly to Wrappers for cigarets, outside leavesof cigars, cheroots, stogies and the like, and to tobacco goods.provided with such wrappers.

All the heretofore known and used wrappers for tobacco, especially thecigaret paper, are based on and composed of cellulose. Such materials,however, impart to the tobacco goods, on smoking, a disagreeable taste,namely that of burnt paper. Heretofore, many attempts have been made toovercome this disadvantage of the known cigaret paper based uponcellulose. Such attempts, however, were unsuccessful.

It is one object of the present invention to provide a new and improvedwrapper material for wrapping and enclosing finely cut tobacco as usedin cigarets, or for use as outside leaf of cigars, cheroots, stogies,and the like tobacco goods.

Another object of the present invention is to provide cigarets, cigars,cheroots, stogies, and the like tobacco goods which are enclosed in andcovered by a new and improved wrapper material.

Other objects of the present invention and advantageous features thereofwill become apparent as the description proceeds.

In principle, a wrapper according to the present invention is composedof a thin foil of gelatin or a similar filmforming glue from animalsources. Said material is employed, in place ofthe paper heretoforeused, for instance, for enclosing cigarets or as the outside leaf forenclosing the rolled tobaccoleaves forming cigars, cheroots, stogies,and the like.

To be useful for the purpose of the present invention, gelatin or thelike foils of glue must contain suitable plasticizers as well as agentscapable of increasing the speed of burning of said foils.

Such plasticizers are, for instance, plasticizers conventionally used inthe art of making gelatin foils, provided they burn without sootformation and yield, if at all, a white residue on combustion.Especially suitable plasticizers of this type are glycerol, Turkey-redoil, and castor oil although the present invention is not limitedthereto.

The preferred agent for increasing the speed of burning of the wrapperfoils according to the present invention is calcium carbonate. Magnesiumcarbonate or dolomite, or other agents may also be used. At leastamounts of about (0.1 part) of said agents are admixed to the gela tinbefore foil formation. Amounts of about 33% of the foil should not beexceeded. Optimum results are obtained by the admixture of about 16% ofcalcium carbonate.

A thin gelatin foil has proved especially suitable for the purpose ofthe present invention. The thickness of the foil is between 0.02 mm. and0.15 mm. and preferably between 0.04 mm. and 0.08 mm.

Hardened gelatin, such as formaldehyde-hardened gelatin, may also beused. Such a hardened gelatin has the advantage that layer formation onburning is inhibited.

In the accompanying drawing constituting a part hereof,

Fig. 1 is a perspective view of a wrapper for tobacco, made inaccordance with the present invention, and

Fig. 2 is a transverse cross-sectional view thereof taken along line 2-2of Fig. 1.

The taste of such thin gelatin foils is improved, according to aspecific embodiment of the present invention, by dusting tobaccoparticles in the form of comminuted tobacco residues, tobacco powder, ortobacco dust upon the moistened foil. Such tobacco particles may also beincorporated into the thin gelatin foil by rolling or they may beadmixed to the casting solution before castingthe gelatin foil.

The preferred film-forming wrapper material which gelatinizes from itsaqueous solution, is substantially pure glutine (a protein in gelatinand a constituent of glue) obtained from skin and bone cartilage. Such apure glutine gelatin does not have any disagreeable effect upon thetaste on smoking tobacco goods enclosed therein and/ or coveredtherewith.

Other animal film-forming and glue wrapper materials which gelatinizefrom their aqueous solution, and which are useful, in the form of thinfoils, for the purpose of the present invention are, for instance,isinglass and similar animal film-forming and glue materials. Thefilmforming and animal glue materials maybe used in mixture with eachother.

To impart to such wrapper foils appearance and color of the heretoforeused paper wrapper, the film-forming material is mixed, preferablyduring foil manufacture, with coloring materials especially with chalkand the like".

Gelatin and the like wrapper foils for tobacco goods have the greatadvantageover cigaret paper and wrapper foils based upon cellulose thatthey are absolutely tasteless on smoking tobacco goods wrapped therein.Even cellophane foils are not completely free of the taste of burningpaper when smoking such cellophane-wrapped tobacco goods.

Preferably, cigarets and other tobacco goods wrapped in gelatin and thelike foils are provided with mouth pieces which prevent sticking of thegelatin wrapper foil to the moist lips, such as cork layers and thelike. A filter-tip also may be used.

The following examples serve to illustrate the present inventionwithout, however, limiting the same thereto.

Example 1 A foil prepared from the following mixture is used in place ofcigaret paper:

6 parts of glutine gelatin 94 parts of water 20 parts of finelypulverized calcium carbonate .1 part of finely pulverized magnesiumcarbonate .1 part of Turkey-red oil Example 2 A foil prepared from thefollowing mixture is used in place of cigaret paper:

6 parts of gelatin 94 parts of Water 20 parts of finely pulverizedcalcium carbonate 5 parts of finely pulverized magnesium carbonate 1part of Turkey-red oil Example 3 A foil prepared from the followingmixture is used in place of cigaret paper:

6 parts of gelatin 94 parts of water 20 parts of finely pulverizedcalcium carbonate 2 parts of T urkey-red oil Example 4 A foil preparedfrom the following mixture is used in place of cigaret paper:

,8 parts of gelatin 92 parts of water ,20 parts of finely pulverizedcalcium carbonate 6 parts of castor oil 5 parts of finely pulverizeddolomite 1 partof' formaldehyde Example 5 A foil prepared from thefollowing mixture is used in place of cigaret paper:

4 parts of gelatin 96 parts of water .5 part of isinglass 20 parts'offinely pulverized calcium carbonate 2 parts of glycerol Example 6 A foilprepared from the following mixture is used in place of cigaret paper:

8 parts of glutine gelatin '92 parts of water 20 parts of finelypulverized calcium carbonate 2 parts'of finely pulverized magnesiumcarbonate -6 parts of Turkey-red oil .01-.1 part of a preserving agentExample 7 5 kg. of fine bone glue are treated for 48 hours with water,which must repeatedly be changed. The water is poured away and thetreated glue is melted at a very moderate temperature. 7.5 gr. of oxalicacid dissolved in water, and subsequently 0.5 liter of alcohol and asolution of 15 grams of candy sugar and /2 kilo of finely pulverizedcalcium carbonate are added to said molten glue. The resulting oily massis poured out by hand or by machine on even plates or ribbonsrespectively, from where. the foil can be taken off after drying. Ofcourse, many changes and variations in the composition of the foils, theagent capable of increasing the speed of burning, the plasticizer, thepreserving agent, the hardening agent, the thickness of the foil, andthe like may be made 'by those skilled in the part in accordance withthe princi- 2. A wrapper for tobacco comprising a substantially puregelatin foil having incorporated therein a plasticizer burningsubstantially without soot formation, said plasticizer being selectedfrom the group consisting of glycerol, Turkey-red oil, and castor oil,and an agent increasing the speed of burning of said wrapper, said agentbeing selected from the group consisting of calcium carbonate, magnesiumcarbonate and mixtures of calcium carbonate and magnesium carbonate.

3. A wrapper for tobacco comprising a foil of a filmforming, animal gluematerial, said foil having incorporated therein a plasticizer burningsubstantially with out soot formation, said plasticizer being selectedfrom the group consisting of glycerol, Turkey-red oil, and castor oil,and an agent increasing the speed of burning of said wrapper, said agentbeing selected from the group consisting of calcium carbonate, magnesiumcarbonate and mixtures of calcium carbonate and magnesium carbonate.

4. A wrapper for tobacco comprising a film-forming, animal glue materialhaving incorporated therein a plasticizer burning substantially withoutsoot formation, said plasticizer being selected from the groupconsisting of glycerol, Turkey-red oil, and castor oil, an agentincreasing the speed of burning of said wrapper, said agent beingselected from the group consisting of calcium carbonate, magnesiumcarbonate and mixtures of calcium carbonate and magnesium carbonate, anda material imparting thereto appearance and color of a paper wrapper.

5. A cigaret paper substitute consisting of a foil of a film-forming,animal glue material, said foil being prepared from a mixture comprisingbetween about 4 parts and about 50, parts of said film-forming animalglue material, between about 0.1 part and about 6 parts of a plasticizerfor said material, said plasticizer being selected from the groupconsisting of glycerol, Turkey-red oil, and castor oil, and'betweenabout 0.1 part and about 33 parts of a carbonate selected from the groupconsisting of calcium carbonate, magnesium carbonate, and mixtures ofcalcium carbonate and magnesium carbonate, said foil having a thicknessbetween about 0.02 mm. and about 0.15 mm.

6. A cigaret wrapper consisting of a foil having a thickness betweenabout .02 mm. and about .15 mm., said foil including about 450 parts ofgelatin, about .1-33 parts of finely pulverized calcium carbonate, andabout .l-6 parts of Turkey-red oil.

References Cited in the file of this patent UNITED STATES PATENTS 46,233Hale Feb. 7, 1865 872,987 Capehart Dec. 3, 1907 1,581,618v SulzebergerApr. 20, 1926 2,433,877 Wells et a1. Jan. 6, 1948

1. A WRAPPER FOR TOBACCO COMPRISING A GELATIN FOIL HAVING INCORPORATEDTHERIN A PLASTICIZER BURNING SUBSTANTIALLY WITHOUT SOOT FORMATION, SAIDPLASTICIZER BEING SELECTED FROM THE GROUP CONSISTING OF GLYCEROL,TURKEYRED OIL, AND CASTOR OIL, AND AN AGENT INCREASING THE SPEED OFBURNING OF SAID WRAPPER, SAID AGENT BEING SELECTED FROM THE GROUPCONSISTING OF CALCIUM CARBONATE, MAGENSIUM CARBONATE AND MIXTURES OFCALCIUM CARBONATE AND MAGNESIUM CARBONATE.